Security Challenges

Security_Challenges.txt

CTFs

    CTFtime.org

AWS Security

    http://flaws.cloud/
    http://flaws2.cloud/
    https://github.com/RhinoSecurityLabs/cloudgoat
    https://github.com/nccgroup/sadcloud
    https://github.com/BishopFox/iam-vulnerable

Crypto

    https://cryptopals.com/
    https://cryptohack.org/

Docker

    https://notsosecure.com/vulnerable-docker-vm/

Exploiting

    http://pwnable.kr/
    http://exploit.education/
    https://ropemporium.com/
    https://github.com/shellphish/how2heap
    https://pwn.college/

GCP Security

    https://thunder-ctf.cloud/

Misc

    https://overthewire.org/
    https://www.root-me.org/
    https://ctflearn.com/
    https://ringzer0ctf.com/
    https://tryhackme.com/
    https://w3challs.com/
    http://gracker.org/

Powershell

    https://www.underthewire.tech

Programming

    https://github.com/donnemartin/interactive-coding-challenges

Pentest

    https://www.hackthebox.eu/
    https://www.vulnhub.com/
    https://www.cyberseclabs.co.uk/

Reversing

    https://challenges.re/
    https://github.com/ytisf/theZoo
    http://reversing.kr/

SysAdmin

    https://github.com/trimstray/test-your-sysadmin-skills

Web

    https://portswigger.net/web-security
    https://ctfchallenge.co.uk
    https://pentesterlab.com/exercises
    https://ctf.hacker101.com/
    https://xss-game.appspot.com/
    http://www.dvwa.co.uk/
    https://google-gruyere.appspot.com/
    https://xss.pwnfunction.com/
    https://github.com/tegal1337/0l4bs
    https://application.security/free-application-security-training

More

    https://github.com/mikeprivette/awesome-sec-challenges
    https://github.com/apsdehal/awesome-ctf#wargames